Kentucky - Area of significance: Military
| Saltpeter Cave |
| Second Battle of Cynthiana Battlefield |
| Shawnee Springs |
| Smith, F. A., House |
| Somerset Armory |
| Sousley, Franklin R., Birthplace |
| Southgate-Parker-Maddux House |
| Springfield Armory |
| Stewart Home School |
| Stidger, Felix Grundy, House |
| Taylor, Zachary, House |
| Taylor, Zachary, National Cemetery |
| Three Gothic Villas |
| Tilghman-Woolfolk House |
| Traveler's Rest |
| U.S. Army Fort Thomas Mess Hall |
| West-Metcalfe House |
| Weston Bluff Skirmish Site |
| West Point Historic District |
| Whitehall |
| Wildcat Battlefield Site |
| Williamsburg Armory |
Data from United States Park Service and Wikidata
